Introduction - ASTM International

absolute abs academic degrees use periods and run together (M.S., Ph.D., etc.) alternating current ac American Am. a American wire gage AWG ampere A ampere hour Ah angstrom A ante meridian a.m. Association Assn. b atmosphere atm average avg barrel bbl becquerel Bq billion electronvolts (use GeV, gigaectronvolts) Birmingham wire gage BWG brake ... ................
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